Helios Fans AMD 280/4

The Helios AMD 280/4 is a medium-pressure axial fan designed for quiet and efficient operation in industrial and commercial ducted ventilation systems. It features a 280mm diameter galvanized steel cylindrical housing with standard DIN 24155 Part 3 flanges for straightforward duct installation.

Equipped with a 4‑pole, direct-drive 3‑phase motor, this fan delivers lower rotational speeds, resulting in significantly reduced noise levels while maintaining effective airflow. The motor is maintenance-free, includes sealed-for-life ball bearings, built-in thermal contacts for protection, and is rated IP54 for dependable operation in demanding environments.

The fan uses a 14-blade polymer impeller, aerodynamically optimized and dynamically balanced to DIN ISO 1940 – 1 (class 6.3), ensuring smooth, vibration-free operation. It is speed-controllable via voltage reduction, offering flexible control over airflow performance.

Ideal for systems requiring air temperatures up to 40°C (controlled) or 60°C (uncontrolled), the AMD 280/4 is perfectly suited for quiet ventilation in workshops, commercial spaces, equipment rooms, and HVAC systems where low noise and durability are essential.

The Helios AMD 280/4 offers a reliable, quiet, and efficient ventilation solution built for long-term industrial use.